A bill to extend the authorizations for appropriations for the San Francisco Bay and Great Dismal Swamp National Wildlife Refuges, and the Tinicum National Environmental Center.

[AI summary unavailable — showing source text] Extends the authorization for appropriations for the San Francisco Bay National Wildlife Refuge, California from June 30, 1977, through September 30, 1980. Authorizes the appropriation of $25,500,000 for the Great Dismal Swamp National Wildlife Refuge, North Carolina, for a period ending September 30, 1980. Authorizes the appropriation of $11,100,000 for the Tinicum National Environmental Center, Pennsylvania, for a period ending September 30, 1980.…