National Forest Preservation Group (NFPG) challenges on procedural and substantive grounds the decision of the .Forest Service to exchange certain government land for lands of the intervenor, Burlington Northern.

The lands are in southwest Montana. The United States agreed, in three separate transactions, to exchange lands within the Gallatin National Forest for lands within and adjacent to the Forest and within Yellowstone National Park. A part of the lands being acquired by Burlington Northern are to be used by Big Sky of Montana, Inc., in a proposed recreational development in the area. Two of the exchanges are challenged in this appeal. We will refer to them as Exchange No. 2 and Exchange No. 3.

NFPG asserts that the exchanges are void because the Forest Service did not comply with the National Environmental Policy Act of 1969, 42 U.S.C. § 4321 et seq., and with the Wilderness Act, 16 U.S.C. §§ 38 , 1131, 1132, and that the exchanges exceed the statutory authority of the Forest Service.

Three preliminary issues are raised by the intervenors and the Justice Department.

I. STANDING

Burlington Northern urges that plaintiffs have no standing to bring this action. The plaintiffs have brought themselves within Sierra Club v. Morton, 405 U.S. 727 , 92 S.Ct. 1361 , 31 L.Ed.2d 636 (1972), by alleging that they are recreational users of the lands in question. Burlington Northern attempts to distinguish Sierra, Club by arguing that there will be no net loss of forest acreage in this case and that NFPG’s “selfish interest in preference in specially selected sections of land” is insufficient to confer standing. The Supreme Court indicated in Sierra Club , however, that precisely such intangible, subjective interests are sufficient to confer standing. 405 U.S. at 734 , 92 S.Ct. 1361 . The plaintiffs have standing.

II. MOOTNESS

The district court, 343 F.Supp. 696 , granted the defendants summary judgment on May 23, 1972, and that same day refused NFPG’s request for an injunction pending appeal. Two days later, the government issued patents to the land to Burlington Northern. Immediately upon recording the patents, Burlington Northern conveyed to Big Sky certain of the contested tracts.

*411 Under various legal headings, Burlington Northern (but not the Justice Department) urges that the speedy patent and sale of the lands from one party to the litigation to another during the pendency of the appeal placed the legality of the transfers beyond the jurisdiction of this court. Nonsense.

Porter v. Lee, 328 U.S. 246 , 66 S.Ct. 1096 , 90 L.Ed. 1199 (1946). See Griffin v. County School Board, 363 F.2d 206 (4th Cir.) (en banc) (school board held in civil contempt for disbursing money to private school pending appeal of judgment denying injunction against disbursement), cert. denied, 385 U.S. 960 , 87 S.Ct. 395 , 17 L.Ed.2d 305 (1966).

III. REVIEWABILITY — AGENCY DISCRETION

The defendants argue that the Secretary of Agriculture has broad discretion to decide whether to enter into a land exchange, and that all aspects of such exchanges are “committed to agency discretion” and therefore unreviewable under Administrative Procedure Act § 10 (a), 5 U.S.C. § 701 (a). The second proposition, however, by no means follows from the first.

Although the basic decision whether or not to enter into an exchange may be nonreviewable, Lewis v. Hickel, 427 F.2d 673 (9th Cir. 1970), cert. denied, 400 U.S. 992 , 91 S.Ct. 451 , 27 L.Ed.2d 440 (1971), judicial review may be available on specific questions. East Oakland-Fruitvale Planning Council v. Rumsfeld, 471 F.2d 524 (9th Cir. 1972); Rockbridge v. Lincoln, 449 F.2d 567 (9th Cir. 1971). See Saferstein, Nonreviewability: A Functional Analysis of “Committed to Agency Discretion,” 82 Harv. L.Rev. 367 (1968).

In this ease NFPG contends that the agency did not comply with specific statutory limitations on its authority. There is clearly “law to apply” on the issues raised, and thus the allegations are reviewable. Citizens to Preserve Overton Park, Inc. v. Volpe, 401 U.S. 402, 410 , 91 S.Ct. 814 , 28 L.Ed.2d 136 (1971).

IV. THE ISSUES

Three purported issues are raised by NFPG: compliance with the Wilderness Act, 16 U.S.C. §§ 1131 , 1132; compliance with the National Environmental Policy Act of 1969 (NEPA), 42 U.S.C. § 4321 et seq.; compliance with the statutes and regulations authorizing the exchanges. The Wilderness Act was not raised by NFPG in its administrative appeals; hence, we decline to consider it here. United States v. Consolidated Mines & Smelting Co., 455 F.2d 432, 438-439, 453 (9th Cir. 1971).

NFPG argues both that there has been noncompliance with specific requirements of the National Environmental Policy Act of 1969 and that the environmental-impact statements prepared were generally insufficient. Defendants, on the other hand, “doubt” whether any statement was required at all, apparently on the theory that the mere shuffling of titles could have no significant impact on the environment.

V. NEPA STATEMENT

We do not “doubt” that NEPA applies to this massive land exchange. While the federal defendants are not themselves planning to take action “significantly affecting the quality of the human environment,” 42 U.S.C. § 4332 (C), the private defendants .plan such action, and the exchange is an act without which such action could not be taken. The land exchange is thus analogous to the licensing of or granting of federal funds to a nonfederal entity to enable it to act. Such federal “enablement” has *412 consistently been held to be subject to NEPA. Brooks v. Volpe, 460 F.2d 1193 (9th Cir. 1972); Natural Resources Defense Council, Inc. v. Morton, 148 U.S.App.D.C. 5 , 458 F.2d 827 (1972); Lathan v. Volpe, 455 F.2d 1111 (9th Cir. 1971); Greene County Planning Board v. Federal Power Comm., 455 F.2d 412 (2d Cir.), cert. denied, 409 U.S. 849 , 93 S.Ct. 56 , 34 L.Ed.2d 90 (1972). Nor would compliance with NEPA be excused by the ignorance of the federal authorities prior to the exchange of the plans the private party may have for the land he will receive. The short answer is that Congress has imposed an affirmative duty on the federal party to the exchange to receive assurances of the plans of the private developer prior to the exchange. See Public Land Law Review Comm’n, One Third of the Nation’s Land 266-67 (1970).

The NEPA statement on these exchanges was not prepared until after the decision of the Regional Forester approving the exchanges. When the decision of the Regional Forester was appealed, the Chief Forester refused to review the decision until an adequate environmental statement had been prepared. A statement was prepared and thereafter accompanied the proposed exchange through all levels of administrative consideration. Normally, an impact statement must be prepared prior to the initial decision to commit resources. 42 U.S.C. § 4332 (B); Calvert Cliffs Coordinating. Comm., Inc. v. Atomic Energy Comm., 146 U.S.App.D.C. 33 , 449 F.2d 1109 , 1128 (1971).

Although proper timing was not followed in this case, we decline to remand on this ground. While the Regional Forester did not prepare a formal enviromental-impact statement, his written explanation of his decision to those who had expressed concern about the exchange shows that he did consider environmental factors. When the lack of a NEPA statement was called to the attention of the Chief Forester, he ordered one prepared. There has been no prejudicial failure to comply with NEPA, and the sterile exercise of having the Regional Forester consider the impact statement on an exchange which has already been approved by all levels of the administrative hierarchy would serve no useful purpose. See Calvert Cliffs Coordinating Comm. Inc. v. Atomic Energy Comm., 449 F.2d 1120 .

The second specific deficiency NFPG urges on us is the failure of the NEPA statement to contain written comments from the Administrator of the Environmental Protection Agency (required by § 309 of the Clean Air Act, 42 U.S.C. § 1857h—7). However, the statement was duly submitted to the E.P.A. The Forest Service should not be penalized 'because the Administrator had nothing to say.

NFPG also attacks generally the sufficiency and completeness of the statement. However, although the statement, like most of its fellows, can be improved by hindsight and sophisticated editing, we believe that the statement satisfied the intent of the statute. Environmental Defense Fund v. Corps of Engineers, 342 F.Supp. 1211 (E.D.Ark. 1972), aff’d, 470 F.2d 289 (8th Cir. 1972).

VI STATUTORY AUTHORITY

A rather complex set of exchange authorities governs land exchanges in the area in and near Yellowstone Park. For his authority in carrying out all phases of these exchanges, the Secretary relied on the General Exchange Act of 1922, 16 U.S.C. § 485 . NFPG argues that the Secretary did not comply with the conditions of the General Exchange Act. NFPG also contends that, with reference to Exchange No. 2, the Secretary should have used the exchange authority made applicable by statute to the lands within the boundaries of Yellowstone Park.

The General Exchange Act permits the Secretary of the Interior to “accept * * * title to any lands within the exterior boundaries of the national forests which, in the opinion of the Secretary of *413 Agriculture, are chiefly valuable for national-forest purposes, and in exchange therefor may patent not to exceed an equal value of such national-forest land, in the same State, surveyed and nonmineral in character * * 16 U.S.C. § 485 . The Act requires notice of the exchange to be published in a newspaper of general circulation for four successive weeks before the exchange is effected. In 1925 a provision was added to the General Exchange Act permitting either party to an exchange under that Act to reserve timber, minerals, or easements. Act of February 28, 1925, Pub.L.No.513, 43 Stat. 1090 , codified as 16 U.S.C. § 486 .

The General Exchange Act was an innovation; prior to that Act exchanges had been authorized on an individual bassis by special bills which often contained their own restrictions on the authority of the Secretary or the private exchanger. House Public Lands Committee, H.R. Rep.No.748, 67th Cong., 2d Sess. (1922). The previous pattern was reverted to in connection with a 1926 extension of the boundaries of Yellowstone Park to provide a winter range for elk. This special exchange authority was similar to the General Exchange Act, as amended, but contained no provision permitting the reservation of mineral or timber rights by the United States. Act of May 26, 1926, Pub.L. 295, §§ 2 and 3, 44 Stat. 655 , 656, codified as 16 U.S.C. §§ 38 , 39.

In 1929, the boundaries of Yellowstone Park again were extended. This extension did not contain a separate exchange authority, but provided that “the provisions of the Act of March 20, 1922 [General Exchange Act], as amended shall continue to be applicable to the areas included within the Yellowstone National Park by this Act.” Act of March 1, 1929, Pub.L.No.888, § 3, 45 Stat. 1436 , codified as 16 U.S.C. § 21c.

NFPG attacks the sufficiency of compliance with these statutes in a number of particulars. First, it asserts that the “equal value” limitation was not complied with in either of the challenged exchanges because the agency’s appraisers improperly valued the land involved. However, the Secretary’s decision to accept those values is supported by substantial evidence. Accordingly, it is final.

Next, NFPG urges that because the General Exchange Act prevents the United States from conveying mineral land the Secretary had no authority to exchange lands under a reservation of mineral rights. However, one of the principal purposes of the 1925 addition to the Act was to legalize the administrative practice of conveying lands believed to contain minerals but reserving the rights thereto to the United States. H.R.Rep. 1176, 68th Cong., 2d Sess. (1925). A reservation is not a conveyance. The exchanges cannot be challenged on this score.

Finally, NFPG urges that the Forest Service violated the authorizing statutes and its own regulations by failing to itemize the lands in Exchange No. 2 according to the statutory authorities for that exchange.

The Forest Service Manual requires itemization, Forest Service Manual § 5431.4, but we need not decide whether a violation of the manual alone would invalidate an authorized exchange. The manual merely expresses the intent of the relevant statutes. Congressional intent was not satisfied here. It was therefore error to grant summary judgment with reference to Exchange No. 2 (the Yellowstone Park exchange).

The purpose of the General Exchange Act was to relieve Congress of the burden of considering new legislation every time an exchange authority was proposed for a federal tract. Against this burden was balanced the difficulty of making certain, without Congressional consideration of each exchange, that the terms of the exchange were responsive to local needs. To allay these fears, western Congressmen were careful to insert into the legislative history of the General Exchange Act the statement that “special provisions will not be changed by the passing of this * * * [Act].” 64 Cong.Rec. 3451 (remarks of Represen *414 tative Raker of California), and the General Exchange Act itself provided the means for local interests to be notified of each exchange by newspaper notices “reciting the lands involved.” The obvious purpose of the notification procedure was to enable local persons opposed to an exchange to protest to the Secretary of the Interior and to their representatives in Washington.

The Act of May 26, 1926, extending the boundaries of Yellowstone Park, included its own exchange authority with its own equal-value limitation and with conditions more restrictive than those in the General Exchange Act as amended. We cannot assume that Congress acted inadvertently in providing this separate exchange authority for lands within Yellowstone National Park. We are therefore bound to give effect to specific Congressional restrictions.

The government in its brief on appeal urges that the “nonmineral” and “equal-value” limitations of the 1926 Act were in fact satisfied with respect to those portions of Exchange No. 2 involving lands within Yellowstone Park, and that the separate “equal-value” requirement of the General Exchange Act was satisfied with respect to the remaining portions of Exchange No. 2. They may have been, but the record does not show that they were. This question is one to be resolved by an evidentiary hearing in the district court. It cannot be resolved by summary judgment. Congress was careful to ensure, in both the 1926 and General Exchange Acts, that local objections, if any, were to be heard. In the proceedings below, the right to object was rendered meaningless by the failure of the Forest Service to indicate in its notices that part of the proposed exchange was to be carried out under the authority of the 1926 Act and part under the General Exchange Act.

We must, therefore, remand for further proceedings. NFPG has urged only that it be given an opportunity to present evidence of noncompliance with limitations in the exchange authorities either before the administrator or before the district court. Therefore, if the Secretary wishes, he may defend against NFPG’s charges in district court rather than repeat the entire administrative process as to Exchange No. 2. Upon remand, the court will first have to itemize the various tracts involved in Exchange No. 2 according to the various exchange statutes. It will then have to decide whether the “nonmineral”* and “equal-value” limitations of the 1926 Act have been complied with with respect to the lands exchanged pursuant to its authority, and whether the “equal-value” requirement of the General Exchange Act was satisfied with respect to the remaining lands.

After the cause had been argued and submitted, counsel for the appellants represented to this court that he had newly discovered evidence which might, in the interests of justice, require reopening the case in the district court with respect to both Exchange No. 2 and Exchange No. 3. In view of the necessity for a remand of this case, that matter can now be addressed to the district court.

Reversed and remanded for further proceedings.